With its stock down 5.4% over the past three months, it is easy to disregard Power Integrations (NASDAQ:POWI). We, however decided to study the company's financials to determine if they have got anything to do with the price decline. Fundamentals usually dictate market outcomes so it makes sense to study the company's financials. Specifically, we decided to study Power Integrations' ROE in this article.

ROE or return on equity is a useful tool to assess how effectively a company can generate returns on the investment it received from its shareholders. Put another way, it reveals the company's success at turning shareholder investments into profits.

See our latest analysis for Power Integrations

How Do You Calculate Return On Equity?

Return on equity can be calculated by using the formula:

Return on Equity = Net Profit (from continuing operations) ÷ Shareholders' Equity

So, based on the above formula, the ROE for Power Integrations is:

4.3% = US$32m ÷ US$750m (Based on the trailing twelve months to December 2024).

The 'return' refers to a company's earnings over the last year. One way to conceptualize this is that for each $1 of shareholders' capital it has, the company made $0.04 in profit.

What Is The Relationship Between ROE And Earnings Growth?

Thus far, we have learned that ROE measures how efficiently a company is generating its profits. Based on how much of its profits the company chooses to reinvest or "retain", we are then able to evaluate a company's future ability to generate profits. Generally speaking, other things being equal, firms with a high return on equity and profit retention, have a higher growth rate than firms that don’t share these attributes.

Power Integrations' Earnings Growth And 4.3% ROE

As you can see, Power Integrations' ROE looks pretty weak. Even compared to the average industry ROE of 12%, the company's ROE is quite dismal. For this reason, Power Integrations' five year net income decline of 24% is not surprising given its lower ROE. We reckon that there could also be other factors at play here. For instance, the company has a very high payout ratio, or is faced with competitive pressures.

However, when we compared Power Integrations' growth with the industry we found that while the company's earnings have been shrinking, the industry has seen an earnings growth of 13% in the same period. This is quite worrisome.

The basis for attaching value to a company is, to a great extent, tied to its earnings growth. It’s important for an investor to know whether the market has priced in the company's expected earnings growth (or decline). By doing so, they will have an idea if the stock is headed into clear blue waters or if swampy waters await. One good indicator of expected earnings growth is the P/E ratio which determines the price the market is willing to pay for a stock based on its earnings prospects. So, you may want to check if Power Integrations is trading on a high P/E or a low P/E, relative to its industry.

Is Power Integrations Using Its Retained Earnings Effectively?

Looking at its three-year median payout ratio of 47% (or a retention ratio of 53%) which is pretty normal, Power Integrations' declining earnings is rather baffling as one would expect to see a fair bit of growth when a company is retaining a good portion of its profits. It looks like there might be some other reasons to explain the lack in that respect. For example, the business could be in decline.

In addition, Power Integrations has been paying dividends over a period of at least ten years suggesting that keeping up dividend payments is way more important to the management even if it comes at the cost of business growth. Our latest analyst data shows that the future payout ratio of the company over the next three years is expected to be approximately 40%.

Conclusion

In total, we're a bit ambivalent about Power Integrations' performance. Even though it appears to be retaining most of its profits, given the low ROE, investors may not be benefitting from all that reinvestment after all. The low earnings growth suggests our theory correct. That being so, the latest industry analyst forecasts show that the analysts are expecting to see a huge improvement in the company's earnings growth rate. To know more about the latest analysts predictions for the company, check out this visualization of analyst forecasts for the company.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.